<template>
  <div class="my-counter">
    <button type="button" class="btn btn-light" @click="redFn">-</button>
    <input type="number" class="form-control inp" v-model.number="count" />
    <button type="button" class="btn btn-light" @click="addFn">+</button>
  </div>
</template>

<script>
export default {
  methods: {
    addFn() {
      this.count++
      this.$emit('input', this.count)
    },
    redFn() {
      if(this.count>0){
        this.count--
        this.$emit('input', this.count)
      }
    },
  },
  data() {
    return {
      count: this.value,
    }
  },
  props: ['value'],
}
</script>

<style lang="less" scoped>
.my-counter {
  display: flex;
  .inp {
    width: 45px;
    text-align: center;
    margin: 0 10px;
  }
  .btn,
  .inp {
    transform: scale(0.9);
  }
}
</style>